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This pilot guide provides detailed operating instructions for the PS Engineer- ing PAC45, Audio Selector Panel/Intercom Systems. Please read it carefully before using the equipment so that you can take full advantage of its capabil- ities. NOTE: Because of user customization of the labels, appearance may differ from illustrations PAC45 Pilot Operating Controls PAC45 Copilot Operating Controls...
Power and Fail Safe Unit power is controlled by the transmit- ter (XMT) selector knob. In the "EMG" or off (fully clockwise) position, the pilot headset is connected directly to COM 1 as well as alerts and unswitched input #1. This allows communication capability regardless of unit condition.
The volume of the received source is adjusted by rotating the knob. The volume is adjusted for the pilot, copilot, and observer/passengers on their respective panels. PS Engineering recommends a lower volume at the radio and higher audio panel setting to minimize noise.
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fies up to nine locations. This helps the crew to better comprehend speech by locating it in a manner more easily differentiated by the human brain. Intercom and other audio is not spatially processed, only the six communi- cations transceivers. You must use stereo headsets, in stereo mode for this feature.
This is normal. For optimum microphone performance, PS Engineering recommends instal- lation of a Microphone Muff Kit from Oregon Aero (1-800-888-6910). This will not only optimize VOX performance, but will improve the overall clar- ity of all your communications.
activation (VOX) and require that the external push to talk intercom buttons for each position be used to speak on the intercom. Push the knob again and the systems toggles back to voice activation. The mode is shown by the green indication in the text. Intercom Volume Control The intercom volume control knob adjusts the loudness of the intercom for the intercom stations(s) connected to the audio controller panel.
decreases. The music volume increases gradually back to the original level after communications have been completed. Crew (CRW): Pilot and copilot are connected on one intercom channel and have exclusive access to the aircraft radios. The observer and passengers will be able to talk to each other.
He will also have access to Com 1 or 2, and will transmit on that radio using the PTT. All selected audio is provided. NOTE PS Engineering does not guarantee compatibility with personal cellular telephones. Bluetooth Reset...
Music Muting Control The PAC45 incorporates PS Engineering’s trademark “SoftMute. The SoftMute™ circuit will mute the music whenever there is conversation on the radio or the intercom. When that conversation stops, the music returns to the previ- ous level comfortably, over a second or so.
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Stereo Helmet Conversion For optimum performance, and for any effective Head Related Transfer Function, stereo headphones must be used. Several companies modify flight helmets to add stereo capability, and change the microphone to high impedance civil aviation if it is military, or low impedance.
PAC45 will exit the alert recording mode. will be borne by PS Engineering, Inc. The risk of loss or damage to the product is borne by the party making the shipment, unless the purchaser requests a specific method of shipment. In this case, the purchaser assumes the risk of loss.
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Revision 2 PAC45 Pilot Guide 202-045-0300 Page 13...
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